| ITF Poland F1 | 2017/06/13 12:45 | Kamil Gajewski v Michal Mikula | 4-6,7-5,6-4 |
| ITF M25 Poznan | 2019/08/20 08:00 | Maciej Rajski v Kamil Gajewski | 6-1,6-3 |
| ITF M25 Poznan | 2019/08/19 08:00 | Kamil Gajewski v Noah Prehn | 6-1,6-7,10-6 |
| ITF M15 Koszalin | 2019/08/06 12:00 | Kamil Gajewski v Aliaksandr Liaonenka | 6-7,2-6 |
| ITF M15 Sharm El Sheikh | 2019/04/08 09:00 | Kamil Gajewski v Philip Bachmaier | 3-6,2-6 |
| ITF M15 Loule | 2019/03/05 14:30 | Juan Bautista Otegui v Kamil Gajewski | 6-2,7-5 |
| ITF Poland F6 | 2018/08/07 08:00 | Piotr Matuszewski v Kamil Gajewski | 6-3,4-6,6-4 |
| Challenger Sopot Qual | 2018/07/28 10:40 | Johannes Haerteis v Kamil Gajewski | 6-3,6-2 |
| ITF Poland F4 | 2018/05/21 07:00 | Kamil Gajewski v Nikolas Lahky | 6-3,6-7,1-6 |
| ITF M15 Monastir | 2020/02/20 08:30 | Riccardo Maiga v Michal Mikula | 6-2,6-2 |
| ITF M15 Monastir | 2020/02/19 11:40 | Michal Mikula v David Perez Sanz | 7-6,3-6,6-4 |
| ITF M15 Monastir | 2020/02/17 14:00 | Lisandru Rodriguez v Michal Mikula | 2-6,1-6 |
| ITF M15 Monastir | 2020/02/16 11:00 | Neeraj Elangovan v Michal Mikula | 3-6,5-7 |
| ITF M15 Monastir | 2020/02/10 12:30 | Aziz Kijametovic v Michal Mikula | 6-4,7-6 |
| ITF M15 Monastir | 2020/02/10 08:30 | Manuel Goncalves v Michal Mikula | 3-6,2-6 |
| ITF M15 Monastir | 2020/01/21 09:40 | Aidan Mchugh v Michal Mikula | 6-0,6-1 |
| ITF M15 Monastir | 2020/01/20 09:00 | Michal Mikula v Timur Khabibulin | 7-6,4-6,5-10 |